[Solved]Displaying an integer with SDL_TTF

[XianForce]

Well I want to display points in a game, but how would I get an integer to display with SDL_ttf?

[Bakkon]

http://www.lazyfoo.net/SDL_tutorials/lesson07/index.php

Follow that and use something like:

Code: Select all

char text[255];
sprintf(text, "Score: %d", player.getScore());
message = TTF_RenderText_Solid(font, text, textColor); 

[Cache]

C/C++ - sprintf:
http://www.cplusplus.com/reference/clib ... o/sprintf/

C++ - stringstream:
http://www.cplusplus.com/reference/iost ... ingstream/

C++ & Boost - lexical_cast:
http://www.boost.org/doc/libs/1_39_0/li ... l_cast.htm

[XianForce]

http://www.lazyfoo.net/SDL_tutorials/lesson07/index.php

Follow that and use something like:

Code: Select all

char text[255];
sprintf(text, "Score: %d", player.getScore());
message = TTF_RenderText_Solid(font, text, textColor); 

TTF takes a const char* so that wouldn't work... right?

[rolland]

I think that would work. If I remember correctly, that's how I did it when I was porting Pickin' Sticks to SDL.

[XianForce]

I think that would work. If I remember correctly, that's how I did it when I was porting Pickin' Sticks to SDL.

It doesn't work for me =(... says invalid conversion from char to const char*

[RyanPridgeon]

Are you sure you're doing it right?

Because if it said invalid conversion from char, you aren't doing what Bakkon said. You're supposed to be passing a char*, and an array of chars can be passed as a char*

so with Bakkon's code

char text[255]; // create a char* that points to 255 chars
sprintf(text, "Score: %d", player.getScore());
message = TTF_RenderText_Solid(font, text, textColor); // text is a char* because its an array of chars

If you still can't get your head around it, it could be written like this

char* text; // create a char*
text = new char[255]; // allocate memory (C++ style)
sprintf(text, "Score: %d", player.getScore());
message = TTF_RenderText_Solid(font, text, textColor);

If you still can't get your head around it, revise pointers.

[XianForce]

that was a typo... there was supposed to be the asterisk after char...

So really it was:

invalid conversion from char* to const char*, but I tried it again and it worked... I don't know what I did differently, cause that was the method I tried before I even posted this thread, well thanks for the help guys =)